Smith



(No Model.) 2 sheets sheet 1.

B. B. GOLDSMITH. MAGAZINE LEAD PENCIL.

No. 603,183. Patented Apr. 26, 1898;

ma annals PETERS cu, PHOYO-LITHQ, WASHINGTONY n. 1:v

(No Model.)

2, Sheets-Sheet 2. B. B. GOLDSMITH. MAGAZINE LEAD PENCIL.

No. 603,18'3." Patented Apr. 26,1898.

fivereian fiymizfl Goldsmith,

UNITED STATES PATENT FFICE.

BYRON BENJAMIN GOLDSMITH, OF NEW YORK, N. Y.

MAGAZINE LEAD-PENCIL,

SPECIFICATION forming part of Letters Fatent No. 603,183, dated April26, 1898.

Application filed January 29, 1894. $erial No. 198,3497. (No model.)

"To all whom it may concern.-

tion positively projected in position for use and the worn or brokenpoints are positively ejected and replaced by new point-s. It has beenproposed to project the points into position for use and to expel themfrom the magazine by means of an'ejector entering the magazine, the saidejector or magazine, or

both, being moved' longitudinally for a lim-- ited distance sufficientto effect the discharge of one point and the projection of the nextsucceeding point into position for use.

The present invention relates more par 'ticularly to the means foractuating the ejector or magazine, or both, to project and discharge thepoints; and it consists, essentially,

of a screw feed mechanism acting alone for propelling the ejector ormagazine longitudinally to eifect the feeding of the points or inconjunction with other actuating mechanism.

The range of movement of the screw feed:

mechanism may be nearly as long as the length of the pencil. Hence it ispossible to so construct the pencil that by successive forward movementsof the ejector all or nearly all of the points in the magazine may besuccessively projected into position for use and expelled. The pencilmay also be constructed so that the ejector may have a limitedreciprocating movement only sufficient to renew a single point at aforward stroke. The operation may be such that the screw feed mechanismwill positively move either the ejector or magazine, or both, in bothdirections or in the forward direction only, a spring being used toreturn them to the first position as the screw feed mechanism is turnedbackward. All this will more fully appear from the following detaildescription with reference to the accompanying drawings, showing severalembodiments of the inventiomand in which- Figure 1 is a longitudinalsection of a pencil, showing the screw feed mechanism arranged to propelthe ejector through a long range of travel in both directions. Fig. 2 isa similar section of a pencil having a fixed ejector and a movablemagazine propelled for- .Wardly a limited distance by the screw feedmechanism and returned by a spring. Fig.

3 is a similar section of a pencil having a fixed magazine and a movableejector. Fig. 4 is a longitudinal section of the front end of a pencilsimilar to that shown inlFig. 1, but with an ejector having a range oftravel similar to that of the ejector shown in Fig. 3. Fig. 5 is alongitudinal section of the rear end of a pencil, similar to that shownin Fig. 2, in which the screw feed mechanism is arranged to actuate themovable member of the pencil positively in both directions. Fig. 6 is alongitudinal section, on the line x :r of Fig. 7, of a pencil similar tothat shown in Fig. 3, but

having a reciprocating ejector-actuating mechanism in addition to thescrew feed Imechanism. Fig. 7 is a cross-section on the line y y of Fig.6; and Fig. 8 is a longitudinal section of a pencil similar to thatshown in Fig. 6, but with both the ejector and magazine movablelongitudinally.

Like numerals of reference indicate like parts throughout all thedrawings.

Referring now more particularly to Fig. 1, there is shown amagazine-pencil with the cylindrical mantle 1, preferably of metal,having at the front end a nozzle 2, expanded to pass over the mantle,which is closed at the rear end by a cap 3. The nozzle 2 is shown inFig. 1 as formed of'two pieces of metal,

which may be soldered together, and it is secured to the mouth by itsrear edge 4, which is turned over an annular bead 5, formed on themantle near its front end in such manner that it may be rotated on thesaid mantle, or the mantle may be rotated in the nozzlefor a purposewhich will hereinafter appear.

Extending centrally through the pencil to or slightly beyond the fronted 'ge of the nozazine-tube and extends through the greater portion ofits length, its front end terminating at or a little beyond the frontend of the mantle and its rear end terminating a short distance in frontof the thimble 7.

Over the magazine-tube is fitted so as to freely slide thereon theejector, which consists ofashort metallic tube 9,having a springfinger1O projecting through the slot 8 into the interior of the magazinetube,so as to engage the butt-end of one of a series of marking-points 11,contained in said tube. A wire helix 12 is soldered or otherwise securedto the inner surface of the mantle, and the same is engaged by a notchformed in a block 13, fast on the ejector, so that when either thenozzle 2 or mantle 1 is turned the helix 12 will act as a screw-feed topropel the ejector,whieh latter is prevented from turning by the finger10 engaging the walls of the slot 8. The helix 12 extends from thethimble 7to the front end of the mantle. The forward movement of theejector is limited by the front end of the slot 8, which is engaged bythe finger 10 when the ejector is in its forward position, and therearward movement of the ejector is limited by the thimble 7 or by aspecial stop, (not shown,) and when the ejector is in the rearmostposition the finger 10 engages the rear wall of the slot and is liftedthereby from the magazine until out of the path of the marking-points;but the front end of the finger still remains within the slot,thercbypreventing the ejector from being turned on the magazine when in thisposition.

The front end of the magazine tube is formed into spring-jaws 14:, whichare so bent as to slightly reduce the bore of the magazine at thispoint; but they offer only sufficient resistance to the passage of amarking-point to prevent the same from dropping out of the tube bygravity. A short distance to the rear of these spring-jaws 1t arespring-tongues 15, extending into the magazine-tube for a purpose thatwill presently appear.

W'hen it is desired to fill the magazine with marking-points, theejector is moved to its rearmost position, so as to draw the finger 10out of the ma gazine-tnbe, after which the cap 3 is removed andmarking-points are introduced into the rear end of the magazine-tube,point downward, while the pencil is held in a vertical ornearly-vertical position. The first point introduced falls until caughtby the tongues 15, and the other points arrange themselves in a seriesbehind this first point until the magazine is full. The nozzle 2 ormantle 1 is now turned, and the ejector is forced forward until thefinger 1O enters the magazine-tube and engages the butt-end of amarking-point, and then a continued forward movement of the ejector willforce the entire series of marking-points forwardly, spreading thetongues 15 as the points pass between them and ultimately projecting thefirst of the series of points through the spring-jaws 1t and intoposition for use, by which time the spring-tongues 15 will have snappedback of the second point of the series, thereby preventing the firstpoint from being forced backward by the pressure of writing. Theejcctor,whieh has by this time been advanced a distance equal to thelength of two markingpoints, may then be returned to its rearmostposition,and more points may be dropped into the magazine until thelatter is filled, when the cap may be put in place.

\Vhen the point in use has become worn or broken and it is desired torenew the same, the ejector is forced forward a distance sufficient toforce the worn point out of the magazine and the next succeeding pointinto position for use, in which case the third of the original series ofmarking-points will have been advanced sufficient for the springtongues15 to snap back of it. In like manner the ejector may be advanced fromtime to time to renew the points, until finally it has reached theforward limit of its travel. It may then be returned to the rearmostposition in order that the magazine maybe again filled withmarking-points, so that the pencil is again ready for successive useuntil the supply in the magazine is exhausted.

The ejector itself may be utilized to resist the back pressure ofwriting, being firmly held in any position by the screw feed mechanism,and in this case the spring-fingers 15 will be omitted.

Referring now more particularly to Fig. 2, the mantle 1 is shown asconstructed of wood or other similar material, and the nozzle 2 is fixedimmovably to it. To the rear end of the mantle is secured a tubularsection 1', forming a continuation of the mantle and having on itsinterior a short helix 12, of wire, soldered or otherwise fixed thereto.The magazine-tube 6 in this instance is movable and slides in theejector 9, which latter consists of a long tube of metal having a flange9 at the rear end, abutting against the rear end of the mantle 1, and isthere held by a helical spring 16, interposed between the said flange 9and a washer 1'7, fixed on the magazine-tube within the mantle-section1, the said magazine-tube being extended a distance beyond the rear endof the ejector. The expanded end 18 of a sleeve 19 is contained withinthe mantle-section 1, the rear end of which latter is reduced indiameter to prevent the expanded end of the sleeve 19 from passingthrough it. The magazine-tube (3 projects into the sleeve 19 to ornearly to its rear end, and the washer 17 abuts against the expandedportion 18 of the said sleeve 19. The expanded end 18 of the sleeve 19has secured to it a block 13, engaged by the helix 12, so that when thesleeve 19 is turned in one direction it will be forced forward,compressing the spring 16 and carrying the magazine-tube forward, andwhen turned in the other direction it will he moved rearwardly and themagazine-tube will be returned to its first position by the spring. Acap 3 closes the outerfend'of the sleeve 19 and may be milled on theexterior to facilitate the turning of the sleeve, which latter when inits most forward position projects far enough outside the section 1 ofthe mantle to permit a ready manipulation of the same.

The forward end of the ejector is formed into two spring-fingers whichenter slots 8,formed in the magazine-tube, near its front end, the saidslots being of such length that when the magazine-tube is in itsforemost position the rear edge of the slots will engage point, wherebythe marking-point in position for use, which point is in advance of thepoint engaged by the fingers 10, is prevented from being forced'backwardby the pressure of writing; butvit will be understood that thespring-tongues (shown in Fig. 1) may be used in this form of the pencil.V

The magazine-tubemay terminate at the front end of the nozzle, as inFig. 1, or it may be extended a distance beyond the same and, exteriorto the nozzle, have beads 22,

formed on the spring-jaws let in such manner that when the magazine-tubeis in its retracted position the front end of the nozzle will rideupthe'be'ads and force the jaws toward each other, so they will tightlyclamp the forward marking-point.

In the pencil shown in Fig. 2 the length of travel of the ejector isonly sufficient to renew a single point at each complete stroke,

and it must always be returned to its rearmost position every time apoint is to be ejected and a new point projected into position for use.In this formof the pencil the operating mechanism differs from thatshown in Fig. 1 in the length of the stroke and in the ejector beingmoved rearwardly by a spring instead of by the positive action of thescrew-feed. V

' In the construction shown in Fig. 3 the mantle 1 is similar to thatshown in Fig. 1. The nozzle 2 terminates in a sleeve 2, which enters themantle and is there held by solder,

beyond the end of the magazine-tube to or nearlyto the end of the sleeve19, which latter is closed by the cap 3.

The screw feed mechanism in the construction shown in Fig. 3 operates inthe same manner as that shown in Fig. 2, except that it moves theejector-tube instead of the magazine-tube. In this structure thespring-fingers 10 are withdrawn from the magazine tube when the partsare in the retracted position, and consequently the magazine-tube isprovided with the spring-tongues 15; but they may be omitted, in whichcase the ejector would be advanced until the fingers 10 engage amarking-point, when the pencil is in use.

is similar to that shown in Fig. 1, the ejector 9 has but a limitedtravel near the front end of the pencil, which travel is only sufficientto eject an old point and project a new one 'into position for use, andthe ejector must be retracted and again moved forward whenever a pointis to be renewed. The helix 12 need only be long enough to move theejector the required distance, and the rearward movement of the ejectoris limited by a back-stop 20, struck up from the magazine-tube.

In the construction shown in Fig. 5 the screw feed mechanism is similarto that shown in Fig. 2; but the inner end of the expanded portion 18 ofthe sleeve 19 is formed with a bead 23, the inner walls of whichconstitute a bearing for the edge of the washer 17, so that while thesleeve may be revolved around the washer it will move it, together withthe magazine-tube, positively in both directions, and the spring 16 istherefore omitted. This construction is equally applicable to the formof pencil shown in Fig. 3, as will be readily understood.

In Figs. 6 and] the pencil shown is similar to that shown in Fig. 3, butwith the construction so modified that the ejector may be given areciprocating movementindependent of and in addition to the screw-feed,so, that either or both means of actuating the ejector to re new thepoints may be employed. The advantage of this construction is that aftera point has been projected for use by the reciprocating movement of theejector it may be adjusted forwardly for wear by the screwfeed. For thispurpose there is introduced into the mantle-section 1 an auxiliary shell24', provided with an exterior helical groove fitting the helix 12 andhaving its rear end contracted, so as to embrace the sleeve 19 back ofits expanded end 18 and between the latter and the reduced rear end ofthe mantlesection 1'. Soldered or otherwise secured to the inner wall ofthe shell24. are two diametrically opposite longitudinal guides or.

In the construction shown in Fig. 4, which IOO spond to the pencil shownin Fig. 3, and consequently no further description thereof is herenecessary. Vith this form of pencil the ejector may be simply pushedforward against the action of the spring 16 by pressing upon the cap 3until a point is ejected and another is projected into position for use,and then when the pressure is removed the ejector will be returned tothe first position by the spring or the sleeve 19 may be rotated,thereby rotating the shell 24, and thus forcing both the shell andsleeve forward and advancing the ejector against the action of thespring to renew a point, after which on turning the sleeve 19 backwardthe parts will be returned to the first position.

lVhen a point has been projected into position for use and it isdesirable for any purpose to still farther advance the same withoutejecting it, the screw-feed is operated until the desired projection isobtained, and since the point normally abutting against thespring-tongues 15 will thereby be moved away from them the back pressureof writing is then received and resisted by the ejector-fingers,whichare made stout enough for this purpose.

In the construction shown in Fig. 1 the additional projection of thepoint is obtained by simply screwing the ejector forward the requireddistance; but in the forms shown in Figs. 3 and 6 the parts are firstreturned to the retracted position and then again moved forward tofarther project the point.

In Fig. 8 the pencil shown corresponds to that shown in Fig. 6 exceptthat the magazine-tube, as well as the ejector, is movablelongitudinally and the front end of the magazine-tube is constructed thesame as shown in Fig. 2. The movement of the magazinetube is only enoughto carry the beads 22 on the jaws 14. away from the front of the nozzle2, so that the front marking-point will be unclamped and may be readilyforced out by the ejector. \Vithin the nozzle 2 the magazine-tube has awasher 27 fixed to it, so that in the normal or retracted position ofthe magazine this washer 27 is a short distance to the rear of a ledge2, formed in the nozzle. The slot 21 in the ejector-tube is shorter thanthe length of the stroke of the same, so that when the ejector is pushedforward the rear end of the slot will engage the short tongue or stud 20on the magazine-tube and the latter will be forced forward until thewasher 27 engages the ledge 2 of the nozzle. When the ejector isretracted, the forward end of the slot will engage the stud before theback stroke is completed and the magazine-tube will be drawn backwarduntil the front end of the nozzle engages the beads 22 on the jaws 1tand forces them toward each other to clamp the marking-point in positionfor use.

It will be readily understood that the screw feed mechanism in Fig. 2may be replaced by the combined screw feed and reciprocating ejectormechanism shown in Fig. 6 and that the screw feed mechanism shown inFigs. 3 and 5 may replace that shown in Fig. 8.

It is also within the scope of the invention to form the enlarged end 18of the sleeve 10 with a helical groove similar to the shell 24 to fitthe helix 12, in which case the said end 18 would be made of the properdiameter for the purpose, and the wire helix 12 may be replaced by ahelical rib formed in the mantle or mantle extension or in a separatesleeve secured therein.

Various other modifications will be apparent to any skilled mechanic,and therefore my invention is not confined to the exact details ofconstruction set forth in the foregoing description and shown in thedrawings.

Having now fully described my invention, I claim and desire to secure byLetters Patent 1. A lead-pencil comprising a mantle pro vided with ahelical guide, a magazine carried by the mantle and adapted to receive aseries of marking-points, and means actuated by the helix on the mantlefor positively ejecting and renewing the points, substantially asdescribed.

2. A lead-pencil provided with a magazine adapted to receive a series ofmarking-points, an ejector exterior to the magazine and provided withone or more spring-fingers entering the magazine, and a screw-feed foractuating the ejecting mechanism to positively expel and renew thepoints, substantially as described.

3. A lead-pencil comprising a mantle provided with a helical guide, amagazine adapted to receive a series of marking-points, and an ejectorengaged by the helical guide on the mantle, whereby the ejector may beactuated to positively expel and renew the points, substantially asdescribed.

4. A lead-pencil comprising a mantle provided with a helical guide, amagazine adapted to receive a series of marking-points and havingspring-jaws at its forward end, and an ejector engaged by the helicalguide on the mantle and actuated thereby to positively expel and renewthe points, substantially as described.

5. A lead-pencil comprising a mantle with an interior helical guide, amagazine adapted to receive a series of marking-points, and an ejectortraveling on the magazine, and e11- gaged by the helical guide, andhaving a stroke sufficient to expel and renew a number of points insuccession, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

BYRON BENJAMIN GOLDSMITH. lVitnesses:

I. WEIL, CHAS. GRUNDLER.

